“Hi sisters!” is widely known as the signature greeting of American beauty creator James Charles, who used the phrase when addressing his online audience. Repetition across beauty videos helped make it inseparable from his public persona, while parodies, edits, and reaction posts carried it into broader meme culture. The line remains useful because it is brief, immediately recognizable, and expressive without needing additional context. Creators still use it to frame glamorous reveals, exaggerated greetings, and intentionally theatrical entrances.